Learning: Principles and Applications in Psychology

Learning

Introduction to Learning

Learning is a fundamental psychological process that involves a relatively stable change in behavior or thinking as a result of experience over time. Understanding how learning occurs is essential in various contexts, including therapy, where the goal is to help clients make lasting changes.

• Definition: Learning is the process of acquiring new information or understanding through experience.

• Conditioning: Another term for learning, especially when referring to the association between stimuli and responses.

• Example: If someone gets very drunk and feels sick, they may avoid drinking excessively in the future.

Habituation

Habituation is the simplest form of learning, involving a decreased response to repeated stimuli over time.

• Definition: Weaker response to a stimulus after repeated exposure.

• Example: A sea slug stops responding after being poked multiple times.

• Relation: Similar to sensory adaptation, but involves behavioral response rather than sensory receptors.

Types of Learning

• Classical Conditioning: Learning through association between two stimuli, focusing on what happens before an involuntary response.

• Operant Conditioning: Learning through consequences that follow a voluntary behavior.

• Observational/Social Learning: Learning by observing and imitating others.

Classical Conditioning

Principles of Classical Conditioning

Classical conditioning involves learning to associate a neutral stimulus with a stimulus that naturally produces a response.

• Acquisition: The process of learning the conditioned response.

• Extinction: Gradual weakening and disappearance of the conditioned response when the conditioned stimulus is presented without the unconditioned stimulus.

• Spontaneous Recovery: The reappearance of a conditioned response after a period of non-exposure to the conditioned stimulus.

• Generalization: Conditioned response is triggered by stimuli similar to the original conditioned stimulus.

• Discrimination: Conditioned response is triggered only by the specific conditioned stimulus, not by similar stimuli.

• Higher/Second Order Conditioning: A new neutral stimulus is paired with an existing conditioned stimulus to elicit the conditioned response.

Classical Conditioning Process

• Before Conditioning:

  • Neutral Stimulus (NS): Does not trigger a response (e.g., bell).

  • Unconditioned Stimulus (US): Naturally triggers a response (e.g., food).

  • Unconditioned Response (UR): Natural reaction to the US (e.g., salivation).

• During Conditioning: NS is repeatedly paired with US.

• After Conditioning: NS becomes a Conditioned Stimulus (CS), eliciting a Conditioned Response (CR).

Note: The UR and CR are the same behavior, but the CR is triggered by the CS after conditioning.

Pavlov’s Legacy

• Classical conditioning demonstrates how all species adapt to their environment.

• Learning can be studied objectively and scientifically.

Applications of Classical Conditioning

• Phobias: Irrational fears can develop through classical conditioning (e.g., fear of balloons after a loud pop).

• Taste Aversion: Avoidance of a food or drink after a single negative experience (e.g., getting sick after eating a burrito).

• Drug Cravings: Former drug users may crave drugs when exposed to environments or people associated with past use.

Little Albert Experiment

• John Watson demonstrated that human emotions and behaviors can be conditioned.

• Little Albert was conditioned to fear a white rat by pairing it with a loud noise.

• Generalization occurred when Albert also feared other fluffy objects.

Operant Conditioning

Principles of Operant Conditioning

Operant conditioning involves learning through the consequences of voluntary behavior.

• B.F. Skinner: Developed the concept using the Skinner Box to study animal behavior.

• Thorndike’s Law of Effect: Behaviors followed by favorable consequences are more likely to be repeated; those followed by unfavorable consequences are less likely.

Types of Consequences

• Reinforcement: Increases the likelihood of a behavior.

  • Primary Reinforcer: Satisfies a biological need (e.g., food, water).

  • Secondary Reinforcer: Learned value (e.g., money, grades).

  • Positive Reinforcement: Adding a rewarding stimulus after a response.

  • Negative Reinforcement: Removing an unpleasant stimulus after a response.

• Punishment: Decreases the likelihood of a behavior.

  • Positive Punishment: Adding an unfavorable stimulus after a response.

  • Negative Punishment: Removing a pleasant stimulus after a response.

Shaping

• Gradually guiding behavior toward a desired goal by reinforcing successive approximations.

• Example: Rewarding a child for small steps toward a complex behavior.

Schedules of Reinforcement

The pattern in which reinforcement is delivered affects learning and behavior.

• Continuous Reinforcement: Reward given every time the behavior occurs.

• Intermittent Reinforcement: Behavior is reinforced only part of the time.

Schedule	Basis	Consistency	Example
Fixed Ratio	Responses	Fixed	Free coffee after every 10 purchases
Variable Ratio	Responses	Variable	Slot machine payouts
Fixed Interval	Time	Fixed	Paycheck every two weeks
Variable Interval	Time	Variable	Pop quizzes

Classical vs. Operant Conditioning

Aspect	Classical Conditioning	Operant Conditioning
Response	Reflexive, involuntary	Non-reflexive, voluntary
Basis of Learning	Association between two stimuli (CS + US)	Association between response and consequence
Extinction Process	CR decreases when CS is presented alone	Response decreases when reinforcement stops

Observational Learning

Principles of Observational Learning

Observational learning occurs by watching and imitating others, without direct experience.

• Prosocial Influence: Positive behaviors can be modeled and learned.

• Antisocial Influence: Negative behaviors, such as aggression, can also be learned through observation.

Mirror Neurons

• Neurons in the frontal lobe that fire when performing or observing actions.

• Enable imitation and empathy, underlying social learning.

• Example: Observing someone in pain activates similar brain regions as experiencing pain oneself.

Albert Bandura and the Bobo Doll Experiment

• Bandura demonstrated that children imitate behaviors observed in adults.

• Children who observed adults acting aggressively toward a Bobo doll were more likely to imitate that aggression.

Violence Viewing Effect

• Exposure to media violence can lead to imitation and desensitization.

• Violence is often portrayed as justified, unpunished, or committed by attractive perpetrators.

• Children may become indifferent to violence and imitate what they see.

Exam Prep: Classical Conditioning Examples

• Pizza Example:

  • US: Seeing pizza

  • UR: Mouth waters from seeing pizza

  • CS: Flat box (pizza box)

  • CR: Mouth waters from seeing box

• Big Mac Example:

  • US: Seeing Big Mac

  • UR: Mouth waters from seeing Big Mac

  • NS: McDonald's (before eating Big Mac)

  • CS: McDonald's (after association)

  • CR: Mouth waters from seeing McDonald's

• Medication Example: Taking medication (NS) paired with illness leads to nausea when thinking about medication (CR).

• Social Conditioning Example: Child learns hostility toward another race by observing parents' reactions.

Additional info: The notes above expand on the original content by providing definitions, structured examples, and tables for reinforcement schedules and conditioning comparisons, as would be found in a mini-textbook chapter.